Finding the Fourth Proportional to 3,477.94, 5,216.89 and 880.87

Step by Step Solution

1. Step 1: Write the proportion equation
   3,477.94 : 5,216.89 = 880.87 : x
2. Step 2: Convert to fraction form
   3,477.94/5,216.89 = 880.87/x
3. Step 3: Cross multiply
   3,477.94x = 5,216.89 × 880.87
4. Step 4: Simplify right side
   3,477.94x = 4,595,401.89
5. Step 5: Solve for x
   x = 4,595,401.89/3,477.94
6. Step 6: Final answer
   x = 1,321.30